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-rw-r--r--cpu.c27
-rw-r--r--opcodes.h303
2 files changed, 174 insertions, 156 deletions
diff --git a/cpu.c b/cpu.c
index 31f4be2..7ef4985 100644
--- a/cpu.c
+++ b/cpu.c
@@ -60,6 +60,8 @@ uint8_t memory[0x16000];
uint32_t cycles = 0;
+bool page_crossed = false;
+
static uint8_t
peek(uint16_t addr)
{
@@ -124,16 +126,26 @@ opcode_mem(enum addressing_mode mode)
case AM_ZP_Y:
val = (arg + regs.y) % 256;
break;
- case AM_IMM:
case AM_REL:
+ val = arg + regs.pc;
+ if ((regs.pc + 1) & 0xFF00 != val & 0xFF00)
+ page_crossed = true;
+ break;
+ case AM_IMM:
case AM_ABS:
val = arg;
break;
case AM_ABS_X:
val = arg + regs.x;
+
+ if ((arg & 0xFF00) != (val & 0xFF00))
+ page_crossed = true;
break;
case AM_ABS_Y:
val = arg + regs.y;
+
+ if ((arg & 0xFF00) != (val & 0xFF00))
+ page_crossed = true;
break;
case AM_IND:
val = peek(arg) | (peek(((arg + 1) & 0xFF) | (arg & 0xFF00)) << 8);
@@ -143,6 +155,9 @@ opcode_mem(enum addressing_mode mode)
break;
case AM_IND_Y:
val = peek(arg) + peek((arg + 1) % 256) * 256 + regs.y;
+
+ if (((uint16_t)(val - regs.y) & 0xFF00) != (val & 0xFF00))
+ page_crossed = true;
break;
default:
fprintf(stderr, "INVALID ADDRESSING MODE %i\n", mode);
@@ -159,10 +174,6 @@ branch(uint16_t addr, bool cond)
return;
cycles++;
- addr += regs.pc;
- if ((regs.pc + 1) & 0xFF00 != addr & 0xFF00)
- cycles++;
-
regs.pc = addr;
}
@@ -763,7 +774,13 @@ interpret(void)
opcodes[op].instr(peek(arg));
else
opcodes[op].instr(arg);
+
cycles += opcodes[op].cycles;
+ if (page_crossed) {
+ if (opcodes[op].page_cross)
+ cycles++;
+ page_crossed = false;
+ }
}
loop_exit:
}
diff --git a/opcodes.h b/opcodes.h
index 4c34bb4..be45bb1 100644
--- a/opcodes.h
+++ b/opcodes.h
@@ -28,160 +28,161 @@ struct opcode {
uint8_t cycles;
bool memread;
bool memwrite;
+ bool page_cross;
enum addressing_mode mode;
};
struct opcode opcodes[0x100] = {
/* official opcodes */
- [0x69] = { "ADC", ADC, 2, 2, false, false, AM_IMM },
- [0x65] = { "ADC", ADC, 2, 3, true, false, AM_ZP },
- [0x75] = { "ADC", ADC, 2, 4, true, false, AM_ZP_X },
- [0x6D] = { "ADC", ADC, 3, 4, true, false, AM_ABS },
- [0x7D] = { "ADC", ADC, 3, 4, true, false, AM_ABS_X },
- [0x79] = { "ADC", ADC, 3, 4, true, false, AM_ABS_Y },
- [0x61] = { "ADC", ADC, 2, 6, true, false, AM_IND_X },
- [0x71] = { "ADC", ADC, 2, 5, true, false, AM_IND_Y },
- [0x29] = { "AND", AND, 2, 2, false, false, AM_IMM },
- [0x25] = { "AND", AND, 2, 3, true, false, AM_ZP },
- [0x35] = { "AND", AND, 2, 4, true, false, AM_ZP_X },
- [0x2D] = { "AND", AND, 3, 4, true, false, AM_ABS },
- [0x3D] = { "AND", AND, 3, 4, true, false, AM_ABS_X },
- [0x39] = { "AND", AND, 3, 4, true, false, AM_ABS_Y },
- [0x21] = { "AND", AND, 2, 6, true, false, AM_IND_X },
- [0x31] = { "AND", AND, 2, 5, true, false, AM_IND_Y },
- [0x0A] = { "ASL", ASL_acc, 1, 2, false, false, AM_ACC },
- [0x06] = { "ASL", ASL, 2, 5, false, true, AM_ZP },
- [0x16] = { "ASL", ASL, 2, 6, false, true, AM_ZP_X },
- [0x0E] = { "ASL", ASL, 3, 6, false, true, AM_ABS },
- [0x1E] = { "ASL", ASL, 3, 7, false, true, AM_ABS_X },
- [0x90] = { "BCC", BCC, 2, 2, false, false, AM_REL },
- [0xB0] = { "BCS", BCS, 2, 2, false, false, AM_REL },
- [0xF0] = { "BEQ", BEQ, 2, 2, false, false, AM_REL },
- [0x24] = { "BIT", BIT, 2, 3, true, false, AM_ZP },
- [0x2C] = { "BIT", BIT, 3, 4, true, false, AM_ABS },
- [0x30] = { "BMI", BMI, 2, 2, false, false, AM_REL },
- [0xD0] = { "BNE", BNE, 2, 2, false, false, AM_REL },
- [0x10] = { "BPL", BPL, 2, 2, false, false, AM_REL },
- [0x00] = { "BRK", BRK, 1, 7, false, false, AM_NONE },
- [0x50] = { "BVC", BVC, 2, 2, false, false, AM_REL },
- [0x70] = { "BVS", BVS, 2, 2, false, false, AM_REL },
- [0x18] = { "CLC", CLC, 1, 2, false, false, AM_NONE },
- [0xD8] = { "CLD", CLD, 1, 2, false, false, AM_NONE },
- [0x58] = { "CLI", CLI, 1, 2, false, false, AM_NONE },
- [0xB8] = { "CLV", CLV, 1, 2, false, false, AM_NONE },
- [0xC9] = { "CMP", CMP, 2, 2, false, false, AM_IMM },
- [0xC5] = { "CMP", CMP, 2, 3, true, false, AM_ZP },
- [0xD5] = { "CMP", CMP, 2, 4, true, false, AM_ZP_X },
- [0xCD] = { "CMP", CMP, 3, 4, true, false, AM_ABS },
- [0xDD] = { "CMP", CMP, 3, 4, true, false, AM_ABS_X },
- [0xD9] = { "CMP", CMP, 3, 4, true, false, AM_ABS_Y },
- [0xC1] = { "CMP", CMP, 2, 6, true, false, AM_IND_X },
- [0xD1] = { "CMP", CMP, 2, 5, true, false, AM_IND_Y },
- [0xE0] = { "CPX", CPX, 2, 2, false, false, AM_IMM },
- [0xE4] = { "CPX", CPX, 2, 3, true, false, AM_ZP },
- [0xEC] = { "CPX", CPX, 3, 4, true, false, AM_ABS },
- [0xC0] = { "CPY", CPY, 2, 2, false, false, AM_IMM },
- [0xC4] = { "CPY", CPY, 2, 3, true, false, AM_ZP },
- [0xCC] = { "CPY", CPY, 3, 4, true, false, AM_ABS },
- [0xC6] = { "DEC", DEC, 2, 5, false, true, AM_ZP },
- [0xD6] = { "DEC", DEC, 2, 6, false, true, AM_ZP_X },
- [0xCE] = { "DEC", DEC, 3, 6, false, true, AM_ABS },
- [0xDE] = { "DEC", DEC, 3, 7, false, true, AM_ABS_X },
- [0xCA] = { "DEX", DEX, 1, 2, false, false, AM_NONE },
- [0x88] = { "DEY", DEY, 1, 2, false, false, AM_NONE },
- [0x49] = { "EOR", EOR, 2, 2, false, false, AM_IMM },
- [0x45] = { "EOR", EOR, 2, 3, true, false, AM_ZP },
- [0x55] = { "EOR", EOR, 2, 4, true, false, AM_ZP_X },
- [0x4D] = { "EOR", EOR, 3, 4, true, false, AM_ABS },
- [0x5D] = { "EOR", EOR, 3, 4, true, false, AM_ABS_X },
- [0x59] = { "EOR", EOR, 3, 4, true, false, AM_ABS_Y },
- [0x41] = { "EOR", EOR, 2, 6, true, false, AM_IND_X },
- [0x51] = { "EOR", EOR, 2, 5, true, false, AM_IND_Y },
- [0xE6] = { "INC", INC, 2, 5, false, true, AM_ZP },
- [0xF6] = { "INC", INC, 2, 6, false, true, AM_ZP_X },
- [0xEE] = { "INC", INC, 3, 6, false, true, AM_ABS },
- [0xFE] = { "INC", INC, 3, 7, false, true, AM_ABS_X },
- [0xE8] = { "INX", INX, 1, 2, false, false, AM_NONE },
- [0xC8] = { "INY", INY, 1, 2, false, false, AM_NONE },
- [0x4C] = { "JMP", JMP, 3, 3, false, false, AM_ABS },
- [0x6C] = { "JMP", JMP, 3, 5, false, false, AM_IND },
- [0x20] = { "JSR", JSR, 3, 6, false, false, AM_ABS },
- [0xA9] = { "LDA", LDA, 2, 2, false, false, AM_IMM },
- [0xA5] = { "LDA", LDA, 2, 3, true, false, AM_ZP },
- [0xB5] = { "LDA", LDA, 2, 4, true, false, AM_ZP_X },
- [0xAD] = { "LDA", LDA, 3, 4, true, false, AM_ABS },
- [0xBD] = { "LDA", LDA, 3, 4, true, false, AM_ABS_X },
- [0xB9] = { "LDA", LDA, 3, 4, true, false, AM_ABS_Y },
- [0xA1] = { "LDA", LDA, 2, 6, true, false, AM_IND_X },
- [0xB1] = { "LDA", LDA, 2, 5, true, false, AM_IND_Y },
- [0xA2] = { "LDX", LDX, 2, 2, false, false, AM_IMM },
- [0xA6] = { "LDX", LDX, 2, 3, true, false, AM_ZP },
- [0xB6] = { "LDX", LDX, 2, 4, true, false, AM_ZP_Y },
- [0xAE] = { "LDX", LDX, 3, 4, true, false, AM_ABS },
- [0xBE] = { "LDX", LDX, 3, 4, true, false, AM_ABS_Y },
- [0xA0] = { "LDY", LDY, 2, 2, false, false, AM_IMM },
- [0xA4] = { "LDY", LDY, 2, 3, true, false, AM_ZP },
- [0xB4] = { "LDY", LDY, 2, 4, true, false, AM_ZP_X },
- [0xAC] = { "LDY", LDY, 3, 4, true, false, AM_ABS },
- [0xBC] = { "LDY", LDY, 3, 4, true, false, AM_ABS_X },
- [0x4A] = { "LSR", LSR_acc, 1, 2, false, false, AM_ACC },
- [0x46] = { "LSR", LSR, 2, 5, false, true, AM_ZP },
- [0x56] = { "LSR", LSR, 2, 6, false, true, AM_ZP_X },
- [0x4E] = { "LSR", LSR, 3, 6, false, true, AM_ABS },
- [0x5E] = { "LSR", LSR, 3, 7, false, true, AM_ABS_X },
- [0xEA] = { "NOP", NOP, 1, 2, false, false, AM_NONE },
- [0x09] = { "ORA", ORA, 2, 2, false, false, AM_IMM },
- [0x05] = { "ORA", ORA, 2, 3, true, false, AM_ZP },
- [0x15] = { "ORA", ORA, 2, 4, true, false, AM_ZP_X },
- [0x0D] = { "ORA", ORA, 3, 4, true, false, AM_ABS },
- [0x1D] = { "ORA", ORA, 3, 4, true, false, AM_ABS_X },
- [0x19] = { "ORA", ORA, 3, 4, true, false, AM_ABS_Y },
- [0x01] = { "ORA", ORA, 2, 6, true, false, AM_IND_X },
- [0x11] = { "ORA", ORA, 2, 5, true, false, AM_IND_Y },
- [0x48] = { "PHA", PHA, 1, 3, false, false, AM_NONE },
- [0x08] = { "PHP", PHP, 1, 3, false, false, AM_NONE },
- [0x68] = { "PLA", PLA, 1, 4, false, false, AM_NONE },
- [0x28] = { "PLP", PLP, 1, 4, false, false, AM_NONE },
- [0x2A] = { "ROL", ROL_acc, 1, 2, false, false, AM_ACC },
- [0x26] = { "ROL", ROL, 2, 5, false, true, AM_ZP },
- [0x36] = { "ROL", ROL, 2, 6, false, true, AM_ZP_X },
- [0x2E] = { "ROL", ROL, 3, 6, false, true, AM_ABS },
- [0x3E] = { "ROL", ROL, 3, 7, false, true, AM_ABS_X },
- [0x6A] = { "ROR", ROR_acc, 1, 2, false, false, AM_ACC },
- [0x66] = { "ROR", ROR, 2, 5, false, true, AM_ZP },
- [0x76] = { "ROR", ROR, 2, 6, false, true, AM_ZP_X },
- [0x6E] = { "ROR", ROR, 3, 6, false, true, AM_ABS },
- [0x7E] = { "ROR", ROR, 3, 7, false, true, AM_ABS_X },
- [0x40] = { "RTI", RTI, 1, 6, false, false, AM_NONE },
- [0x60] = { "RTS", RTS, 1, 6, false, false, AM_NONE },
- [0xE9] = { "SBC", SBC, 2, 2, false, false, AM_IMM },
- [0xE5] = { "SBC", SBC, 2, 3, true, false, AM_ZP },
- [0xF5] = { "SBC", SBC, 2, 4, true, false, AM_ZP_X },
- [0xED] = { "SBC", SBC, 3, 4, true, false, AM_ABS },
- [0xFD] = { "SBC", SBC, 3, 4, true, false, AM_ABS_X },
- [0xF9] = { "SBC", SBC, 3, 4, true, false, AM_ABS_Y },
- [0xE1] = { "SBC", SBC, 2, 6, true, false, AM_IND_X },
- [0xF1] = { "SBC", SBC, 2, 5, true, false, AM_IND_Y },
- [0x38] = { "SEC", SEC, 1, 2, false, false, AM_NONE },
- [0xF8] = { "SED", SED, 1, 2, false, false, AM_NONE },
- [0x78] = { "SEI", SEI, 1, 2, false, false, AM_NONE },
- [0x85] = { "STA", STA, 2, 3, false, true, AM_ZP },
- [0x95] = { "STA", STA, 2, 4, false, true, AM_ZP_X },
- [0x8D] = { "STA", STA, 3, 4, false, true, AM_ABS },
- [0x9D] = { "STA", STA, 3, 5, false, true, AM_ABS_X },
- [0x99] = { "STA", STA, 3, 5, false, true, AM_ABS_Y },
- [0x81] = { "STA", STA, 2, 6, false, true, AM_IND_X },
- [0x91] = { "STA", STA, 2, 6, false, true, AM_IND_Y },
- [0x86] = { "STX", STX, 2, 3, false, true, AM_ZP },
- [0x96] = { "STX", STX, 2, 4, false, true, AM_ZP_Y },
- [0x8E] = { "STX", STX, 3, 4, false, true, AM_ABS },
- [0x84] = { "STY", STY, 2, 3, false, true, AM_ZP },
- [0x94] = { "STY", STY, 2, 4, false, true, AM_ZP_X },
- [0x8C] = { "STY", STY, 3, 4, false, true, AM_ABS },
- [0xAA] = { "TAX", TAX, 1, 2, false, false, AM_NONE },
- [0xA8] = { "TAY", TAY, 1, 2, false, false, AM_NONE },
- [0xBA] = { "TSX", TSX, 1, 2, false, false, AM_NONE },
- [0x8A] = { "TXA", TXA, 1, 2, false, false, AM_NONE },
- [0x9A] = { "TXS", TXS, 1, 2, false, false, AM_NONE },
- [0x98] = { "TYA", TYA, 1, 2, false, false, AM_NONE },
+ [0x69] = { "ADC", ADC, 2, 2, false, false, false, AM_IMM },
+ [0x65] = { "ADC", ADC, 2, 3, true, false, false, AM_ZP },
+ [0x75] = { "ADC", ADC, 2, 4, true, false, false, AM_ZP_X },
+ [0x6D] = { "ADC", ADC, 3, 4, true, false, false, AM_ABS },
+ [0x7D] = { "ADC", ADC, 3, 4, true, false, true, AM_ABS_X },
+ [0x79] = { "ADC", ADC, 3, 4, true, false, true, AM_ABS_Y },
+ [0x61] = { "ADC", ADC, 2, 6, true, false, false, AM_IND_X },
+ [0x71] = { "ADC", ADC, 2, 5, true, false, true, AM_IND_Y },
+ [0x29] = { "AND", AND, 2, 2, false, false, false, AM_IMM },
+ [0x25] = { "AND", AND, 2, 3, true, false, false, AM_ZP },
+ [0x35] = { "AND", AND, 2, 4, true, false, false, AM_ZP_X },
+ [0x2D] = { "AND", AND, 3, 4, true, false, false, AM_ABS },
+ [0x3D] = { "AND", AND, 3, 4, true, false, true, AM_ABS_X },
+ [0x39] = { "AND", AND, 3, 4, true, false, true, AM_ABS_Y },
+ [0x21] = { "AND", AND, 2, 6, true, false, false, AM_IND_X },
+ [0x31] = { "AND", AND, 2, 5, true, false, true, AM_IND_Y },
+ [0x0A] = { "ASL", ASL_acc, 1, 2, false, false, false, AM_ACC },
+ [0x06] = { "ASL", ASL, 2, 5, false, true, false, AM_ZP },
+ [0x16] = { "ASL", ASL, 2, 6, false, true, false, AM_ZP_X },
+ [0x0E] = { "ASL", ASL, 3, 6, false, true, false, AM_ABS },
+ [0x1E] = { "ASL", ASL, 3, 7, false, true, false, AM_ABS_X },
+ [0x90] = { "BCC", BCC, 2, 2, false, false, true, AM_REL },
+ [0xB0] = { "BCS", BCS, 2, 2, false, false, true, AM_REL },
+ [0xF0] = { "BEQ", BEQ, 2, 2, false, false, true, AM_REL },
+ [0x24] = { "BIT", BIT, 2, 3, true, false, false, AM_ZP },
+ [0x2C] = { "BIT", BIT, 3, 4, true, false, false, AM_ABS },
+ [0x30] = { "BMI", BMI, 2, 2, false, false, true, AM_REL },
+ [0xD0] = { "BNE", BNE, 2, 2, false, false, true, AM_REL },
+ [0x10] = { "BPL", BPL, 2, 2, false, false, true, AM_REL },
+ [0x00] = { "BRK", BRK, 1, 7, false, false, false, AM_NONE },
+ [0x50] = { "BVC", BVC, 2, 2, false, false, true, AM_REL },
+ [0x70] = { "BVS", BVS, 2, 2, false, false, true, AM_REL },
+ [0x18] = { "CLC", CLC, 1, 2, false, false, false, AM_NONE },
+ [0xD8] = { "CLD", CLD, 1, 2, false, false, false, AM_NONE },
+ [0x58] = { "CLI", CLI, 1, 2, false, false, false, AM_NONE },
+ [0xB8] = { "CLV", CLV, 1, 2, false, false, false, AM_NONE },
+ [0xC9] = { "CMP", CMP, 2, 2, false, false, false, AM_IMM },
+ [0xC5] = { "CMP", CMP, 2, 3, true, false, false, AM_ZP },
+ [0xD5] = { "CMP", CMP, 2, 4, true, false, false, AM_ZP_X },
+ [0xCD] = { "CMP", CMP, 3, 4, true, false, false, AM_ABS },
+ [0xDD] = { "CMP", CMP, 3, 4, true, false, true, AM_ABS_X },
+ [0xD9] = { "CMP", CMP, 3, 4, true, false, true, AM_ABS_Y },
+ [0xC1] = { "CMP", CMP, 2, 6, true, false, false, AM_IND_X },
+ [0xD1] = { "CMP", CMP, 2, 5, true, false, true, AM_IND_Y },
+ [0xE0] = { "CPX", CPX, 2, 2, false, false, false, AM_IMM },
+ [0xE4] = { "CPX", CPX, 2, 3, true, false, false, AM_ZP },
+ [0xEC] = { "CPX", CPX, 3, 4, true, false, false, AM_ABS },
+ [0xC0] = { "CPY", CPY, 2, 2, false, false, false, AM_IMM },
+ [0xC4] = { "CPY", CPY, 2, 3, true, false, false, AM_ZP },
+ [0xCC] = { "CPY", CPY, 3, 4, true, false, false, AM_ABS },
+ [0xC6] = { "DEC", DEC, 2, 5, false, true, false, AM_ZP },
+ [0xD6] = { "DEC", DEC, 2, 6, false, true, false, AM_ZP_X },
+ [0xCE] = { "DEC", DEC, 3, 6, false, true, false, AM_ABS },
+ [0xDE] = { "DEC", DEC, 3, 7, false, true, false, AM_ABS_X },
+ [0xCA] = { "DEX", DEX, 1, 2, false, false, false, AM_NONE },
+ [0x88] = { "DEY", DEY, 1, 2, false, false, false, AM_NONE },
+ [0x49] = { "EOR", EOR, 2, 2, false, false, false, AM_IMM },
+ [0x45] = { "EOR", EOR, 2, 3, true, false, false, AM_ZP },
+ [0x55] = { "EOR", EOR, 2, 4, true, false, false, AM_ZP_X },
+ [0x4D] = { "EOR", EOR, 3, 4, true, false, false, AM_ABS },
+ [0x5D] = { "EOR", EOR, 3, 4, true, false, true, AM_ABS_X },
+ [0x59] = { "EOR", EOR, 3, 4, true, false, true, AM_ABS_Y },
+ [0x41] = { "EOR", EOR, 2, 6, true, false, false, AM_IND_X },
+ [0x51] = { "EOR", EOR, 2, 5, true, false, true, AM_IND_Y },
+ [0xE6] = { "INC", INC, 2, 5, false, true, false, AM_ZP },
+ [0xF6] = { "INC", INC, 2, 6, false, true, false, AM_ZP_X },
+ [0xEE] = { "INC", INC, 3, 6, false, true, false, AM_ABS },
+ [0xFE] = { "INC", INC, 3, 7, false, true, false, AM_ABS_X },
+ [0xE8] = { "INX", INX, 1, 2, false, false, false, AM_NONE },
+ [0xC8] = { "INY", INY, 1, 2, false, false, false, AM_NONE },
+ [0x4C] = { "JMP", JMP, 3, 3, false, false, false, AM_ABS },
+ [0x6C] = { "JMP", JMP, 3, 5, false, false, false, AM_IND },
+ [0x20] = { "JSR", JSR, 3, 6, false, false, false, AM_ABS },
+ [0xA9] = { "LDA", LDA, 2, 2, false, false, false, AM_IMM },
+ [0xA5] = { "LDA", LDA, 2, 3, true, false, false, AM_ZP },
+ [0xB5] = { "LDA", LDA, 2, 4, true, false, false, AM_ZP_X },
+ [0xAD] = { "LDA", LDA, 3, 4, true, false, false, AM_ABS },
+ [0xBD] = { "LDA", LDA, 3, 4, true, false, true, AM_ABS_X },
+ [0xB9] = { "LDA", LDA, 3, 4, true, false, true, AM_ABS_Y },
+ [0xA1] = { "LDA", LDA, 2, 6, true, false, false, AM_IND_X },
+ [0xB1] = { "LDA", LDA, 2, 5, true, false, true, AM_IND_Y },
+ [0xA2] = { "LDX", LDX, 2, 2, false, false, false, AM_IMM },
+ [0xA6] = { "LDX", LDX, 2, 3, true, false, false, AM_ZP },
+ [0xB6] = { "LDX", LDX, 2, 4, true, false, false, AM_ZP_Y },
+ [0xAE] = { "LDX", LDX, 3, 4, true, false, false, AM_ABS },
+ [0xBE] = { "LDX", LDX, 3, 4, true, false, true, AM_ABS_Y },
+ [0xA0] = { "LDY", LDY, 2, 2, false, false, false, AM_IMM },
+ [0xA4] = { "LDY", LDY, 2, 3, true, false, false, AM_ZP },
+ [0xB4] = { "LDY", LDY, 2, 4, true, false, false, AM_ZP_X },
+ [0xAC] = { "LDY", LDY, 3, 4, true, false, false, AM_ABS },
+ [0xBC] = { "LDY", LDY, 3, 4, true, false, true, AM_ABS_X },
+ [0x4A] = { "LSR", LSR_acc, 1, 2, false, false, false, AM_ACC },
+ [0x46] = { "LSR", LSR, 2, 5, false, true, false, AM_ZP },
+ [0x56] = { "LSR", LSR, 2, 6, false, true, false, AM_ZP_X },
+ [0x4E] = { "LSR", LSR, 3, 6, false, true, false, AM_ABS },
+ [0x5E] = { "LSR", LSR, 3, 7, false, true, false, AM_ABS_X },
+ [0xEA] = { "NOP", NOP, 1, 2, false, false, false, AM_NONE },
+ [0x09] = { "ORA", ORA, 2, 2, false, false, false, AM_IMM },
+ [0x05] = { "ORA", ORA, 2, 3, true, false, false, AM_ZP },
+ [0x15] = { "ORA", ORA, 2, 4, true, false, false, AM_ZP_X },
+ [0x0D] = { "ORA", ORA, 3, 4, true, false, false, AM_ABS },
+ [0x1D] = { "ORA", ORA, 3, 4, true, false, true, AM_ABS_X },
+ [0x19] = { "ORA", ORA, 3, 4, true, false, true, AM_ABS_Y },
+ [0x01] = { "ORA", ORA, 2, 6, true, false, false, AM_IND_X },
+ [0x11] = { "ORA", ORA, 2, 5, true, false, true, AM_IND_Y },
+ [0x48] = { "PHA", PHA, 1, 3, false, false, false, AM_NONE },
+ [0x08] = { "PHP", PHP, 1, 3, false, false, false, AM_NONE },
+ [0x68] = { "PLA", PLA, 1, 4, false, false, false, AM_NONE },
+ [0x28] = { "PLP", PLP, 1, 4, false, false, false, AM_NONE },
+ [0x2A] = { "ROL", ROL_acc, 1, 2, false, false, false, AM_ACC },
+ [0x26] = { "ROL", ROL, 2, 5, false, true, false, AM_ZP },
+ [0x36] = { "ROL", ROL, 2, 6, false, true, false, AM_ZP_X },
+ [0x2E] = { "ROL", ROL, 3, 6, false, true, false, AM_ABS },
+ [0x3E] = { "ROL", ROL, 3, 7, false, true, false, AM_ABS_X },
+ [0x6A] = { "ROR", ROR_acc, 1, 2, false, false, false, AM_ACC },
+ [0x66] = { "ROR", ROR, 2, 5, false, true, false, AM_ZP },
+ [0x76] = { "ROR", ROR, 2, 6, false, true, false, AM_ZP_X },
+ [0x6E] = { "ROR", ROR, 3, 6, false, true, false, AM_ABS },
+ [0x7E] = { "ROR", ROR, 3, 7, false, true, false, AM_ABS_X },
+ [0x40] = { "RTI", RTI, 1, 6, false, false, false, AM_NONE },
+ [0x60] = { "RTS", RTS, 1, 6, false, false, false, AM_NONE },
+ [0xE9] = { "SBC", SBC, 2, 2, false, false, false, AM_IMM },
+ [0xE5] = { "SBC", SBC, 2, 3, true, false, false, AM_ZP },
+ [0xF5] = { "SBC", SBC, 2, 4, true, false, false, AM_ZP_X },
+ [0xED] = { "SBC", SBC, 3, 4, true, false, false, AM_ABS },
+ [0xFD] = { "SBC", SBC, 3, 4, true, false, true, AM_ABS_X },
+ [0xF9] = { "SBC", SBC, 3, 4, true, false, true, AM_ABS_Y },
+ [0xE1] = { "SBC", SBC, 2, 6, true, false, false, AM_IND_X },
+ [0xF1] = { "SBC", SBC, 2, 5, true, false, true, AM_IND_Y },
+ [0x38] = { "SEC", SEC, 1, 2, false, false, false, AM_NONE },
+ [0xF8] = { "SED", SED, 1, 2, false, false, false, AM_NONE },
+ [0x78] = { "SEI", SEI, 1, 2, false, false, false, AM_NONE },
+ [0x85] = { "STA", STA, 2, 3, false, true, false, AM_ZP },
+ [0x95] = { "STA", STA, 2, 4, false, true, false, AM_ZP_X },
+ [0x8D] = { "STA", STA, 3, 4, false, true, false, AM_ABS },
+ [0x9D] = { "STA", STA, 3, 5, false, true, false, AM_ABS_X },
+ [0x99] = { "STA", STA, 3, 5, false, true, false, AM_ABS_Y },
+ [0x81] = { "STA", STA, 2, 6, false, true, false, AM_IND_X },
+ [0x91] = { "STA", STA, 2, 6, false, true, false, AM_IND_Y },
+ [0x86] = { "STX", STX, 2, 3, false, true, false, AM_ZP },
+ [0x96] = { "STX", STX, 2, 4, false, true, false, AM_ZP_Y },
+ [0x8E] = { "STX", STX, 3, 4, false, true, false, AM_ABS },
+ [0x84] = { "STY", STY, 2, 3, false, true, false, AM_ZP },
+ [0x94] = { "STY", STY, 2, 4, false, true, false, AM_ZP_X },
+ [0x8C] = { "STY", STY, 3, 4, false, true, false, AM_ABS },
+ [0xAA] = { "TAX", TAX, 1, 2, false, false, false, AM_NONE },
+ [0xA8] = { "TAY", TAY, 1, 2, false, false, false, AM_NONE },
+ [0xBA] = { "TSX", TSX, 1, 2, false, false, false, AM_NONE },
+ [0x8A] = { "TXA", TXA, 1, 2, false, false, false, AM_NONE },
+ [0x9A] = { "TXS", TXS, 1, 2, false, false, false, AM_NONE },
+ [0x98] = { "TYA", TYA, 1, 2, false, false, false, AM_NONE },
};
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-27 15:51:29 +0000